Which cell type is an agranulocyte?
Monocytes
Neutrophils
Eosinophils
Basophils
The Correct Answer is A
A. Monocytes: Agranulocyte -large cell with a kidney/bean-shaped nucleus that differentiates into macrophages in tissues.
B. Neutrophils: Granulocyte -multilobed nucleus and cytoplasmic granules; primary phagocytes in acute inflammation.
C. Eosinophils: Granulocyte -bilobed nucleus with large eosin-staining granules; involved in parasitic infections and allergic reactions.
D. Basophils: Granulocyte -contains histamine/heparin-filled granules and participates in allergic/inflammatory responses.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Thyroid cartilage: Thyroid cartilage is a laryngeal cartilage (Adam’s apple), not the opening between the cords
B. Cricoid cartilage: Cricoid cartilage is a ring below the thyroid cartilage, not the opening between vocal cords
C. Alveoli: Alveoli are air sacs in the lungs, unrelated to vocal cord anatomy
D. Glottis: The glottis is the opening between the true vocal cords
Correct Answer is A
Explanation
A. Altered oxygen-carrying capability of blood: RBCs (via hemoglobin) are the primary carriers of oxygen; too few (anemia) or dysfunctional RBCs reduce O₂ delivery, too many (polycythemia) can alter flow.
B. Altered ability to clot blood: clotting is primarily mediated by platelets and clotting factors, not by RBC count (RBCs can influence viscosity but are not the main clotting elements).
C. Altered ability to fight infection: fighting infection is mainly the role of leukocytes (WBCs), not RBCs.
D. Altered heart rate and contractility: significant changes in RBC number (especially anemia) can cause compensatory increases in heart rate and contractility to maintain oxygen delivery; polycythemia can also change cardiac workload.
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